9. The orbital hybridization on the carbon atoms in C2H2 is (A). sp (B). sp2 (C)

Question

9. The orbital hybridization on the carbon atoms in C2H2 is

(A). sp (B). sp2 (C). sp3 (D). sp3 d 2

10. A molecule containing a central atom with sp2 hybridization has a(n) ________ electron geometry.

(A). linear (B). trigonal bipyramidal (C). trigonal planar (D). octahedral (E). bent

11. List the number of sigma bonds and pi bonds in a single bond.

(A). 1 sigma, 0 pi (B). 0 sigma, 0 pi (C). 1 sigma, 1 pi (D). 3 sigma, 2 pi

12. Draw the Lewis structure for the molecule CH2CHCH3. How many sigma and pi bonds does it contain?

(A). 8 sigma, 1 pi (B). 9 sigma, 0 pi (C). 9 sigma, 1 pi (D). 7 sigma, 1 pi (E). 8 sigma, 2 pi

13. According to molecular orbital theory, an antibonding orbital is formed when two orbitals destructively interfere with one another.

(A). True (B). False

Explanation / Answer

9. Answer is A (SP)

10. C (trigonal planar)

11. (A). 1 sigma, 0 pi

12.(A). 8 sigma, 1 pi

13. (A). True

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